Audi Q7: Chain Drive
Overview - Camshaft Timing Chains
Left Camshaft Timing Chain
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1 - Bolts
- Tightening specification. Refer to -item 4-
2 - Mounting Pin
- For the left camshaft timing chain drive chain sprocket
3 - Bolt
- 80 Nm +90º
- Replace after removing
4 - Camshaft Adjuster
- For the exhaust camshaft
- Designation "EX"
- Removing and installing. Refer to
→ Chapter "Camshaft Timing Chain, Removing from Camshafts".
5 - Bolt
- 80 Nm +90º
- Replace after removing
6 - Camshaft Adjuster
- For the intake camshaft
- Designation "IN"
- Removing and installing. Refer to
→ Chapter "Camshaft Timing Chain, Removing from Camshafts".
7 - Left Camshaft Timing Chain
- Mark the running direction with paint for reinstallation
- Removing from the camshafts. Refer to
→ Chapter "Camshaft Timing Chain, Removing from Camshafts".
- Removing and installing. Refer to
→ Chapter "Camshaft Timing Chain, Removing and Installing".
8 - Bolt
9 - Gliding Piece
10 - Chain Tensioner
- For the left camshaft timing chain
- Removing and installing. Refer to
→ Chapter "Camshaft Timing Chain, Removing and Installing".
11 - Bearing Plate
- For the drive chain sprocket
12 - Bolt
- Tightening specification. Refer to -item 8-
13 - Drive Chain Sprocket
- For the left camshaft timing chain
Right Camshaft Timing Chain
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1 - Bolt
- 80 Nm +90º
- Replace after removing
2 - Camshaft Adjuster
- For the exhaust camshaft
- Designation "EX"
- Removing and installing. Refer to
→ Chapter "Camshaft Timing Chain, Removing from Camshafts".
3 - Bolt
- Tightening specification. Refer to -item 11-.
4 - Mounting Pin
- For the right camshaft timing chain drive chain sprocket
- Asymmetrical version
- Installation position. Refer to → Fig. "Mounting Pin for Right Camshaft Timing Chain Drive Chain
Sprocket Installation Position".
5 - Drive Chain Sprocket
- For the right camshaft timing chain
- Installation position. Refer to → Fig. "Mounting Pin for Right Camshaft Timing Chain Drive Chain
Sprocket Installation Position".
6 - Bolt
- 80 Nm +90º
- Replace after removing
7 - Camshaft Adjuster
- For the intake camshaft
- Designation "IN"
- Removing and installing. Refer to
→ Chapter "Camshaft Timing Chain, Removing from Camshafts".
8 - Right Camshaft Timing Chain
- Mark the running direction with paint for reinstallation
- Removing from the camshafts. Refer to
→ Chapter "Camshaft Timing Chain, Removing from Camshafts".
- Removing and installing. Refer to
→ Chapter "Camshaft Timing Chain, Removing and Installing".
9 - Thrust Washer
- For the right camshaft timing chain drive chain sprocket
- Asymmetrical version
- Installation position. Refer to → Fig. "Mounting Pin for Right Camshaft Timing Chain Drive Chain
Sprocket Installation Position".
10 - Chain Tensioner
- For the right camshaft timing chain
- Removing and installing. Refer to
→ Chapter "Camshaft Timing Chain, Removing and Installing".
11 - Gliding Piece
12 - Bolt
Overview - Timing Mechanism Drive Chain
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1 - Guide Rail
2 - Bolt
3 - Bolt
4 - Bolts
- 5 Nm +90º
- Replace after removing
5 - Mounting Pin
- For the left camshaft timing chain drive chain sprocket
6 - Drive Chain Sprocket
- For the left camshaft timing chain
7 - Drive Chain
- For timing mechanism
- Mark the running direction with paint for reinstallation
- Removing and installing. Refer to
→ Chapter "Timing Mechanism Drive Chain, Removing and Installing".
8 - Bolt
- 8 Nm +45º
- Replace after removing
9 - Bearing Plate
- For the left camshaft timing chain drive chain sprocket
10 - Balance Shaft Chain Sprocket
- With transmission side balance weight
11 - Bolt
12 - Mounting Pin
- For the right camshaft timing chain drive chain sprocket
- Asymmetrical version
- Installation position. Refer to → Fig. "Mounting Pin for Right Camshaft Timing Chain Drive Chain
Sprocket Installation Position".
13 - Drive Chain Sprocket
- For the right camshaft timing chain
- Installation position. Refer to → Fig. "Mounting Pin for Right Camshaft Timing Chain Drive Chain
Sprocket Installation Position".
14 - Thrust Washer
- For the right camshaft timing chain drive chain sprocket
- Asymmetrical version
- Installation position. Refer to → Fig. "Mounting Pin for Right Camshaft Timing Chain Drive Chain
Sprocket Installation Position".
15 - Seal
16 - Chain Tensioner
- Removing and installing. Refer to
→ Chapter "Timing Mechanism Drive Chain, Removing and Installing".
17 - Bolt
18 - Crankshaft
19 - Bolt
- Tightening specification. Refer to -item 2-.
Mounting Pin for Right Camshaft Timing Chain Drive Chain
Sprocket Installation Position
- The alignment pins in the right camshaft timing chain drive
chain sprocket mounting pin -3-
must engage in the holes in the thrust washer
-1- and in the cylinder block.
2 - Drive Chain Sprocket for Right Camshaft Timing Chain
4 - Bolt
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Overview - Oil Pump Drive Chain
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1 - Bolt
- 30 Nm +90º
- Replace after removing
2 - Drive Chain Sprocket
- For the oil pump
- Installed position: the side with the lettering faces the
transmission
- Installation only possible in one position.
3 - Chain Tensioner
4 - Bolt
5 - Drive Chain
- For the oil pump
- Mark the running direction with paint for reinstallation
- Removing and installing. Refer to
→ Chapter "Oil Pump Drive Chain, Removing and Installing".
READ NEXT:
Special tools and workshop equipment
required
Crankshaft Socket -T40058-
Crankshaft Locking Pin -T40069-
Locking Pin -T40071- (quantity: 2)
Camshaft Clamp -T40133- (quantity: 2)
Key -T40297-
Removing
The transmission is removed. Refer to
→ 8-Speed Automatic Transmission 0D5; Rep. Gr.37; Transmission,
Removing and Installing; Transmission, Removing.
- Remove the
Overview - Cylinder Head
Note
The cylinder head for cylinder bank 2 (left) is shown in the
illustration.
1 - Cylinder Head Gasket
Replacing. Refer to
→ Chapter "Cylinder
SEE MORE:
Left Rear Door Contour Illumination Lamp, Removing and Installing
Removing
- Remove the rear door trim panel. Refer to
→ Body Interior; Rep. Gr.70; Rear Door Trim Panels; Rear Door
Trim Panel, Removing and Installing.
- Disengage the upper insulation.
- Disconnect th
A/C Compressor Regulator Valve -N280-, Checking Switch-On Signal
Note
The test for an A/C compressor manufactured by "Denso" of
type "6 SEU 14" is described in the following. The test is to be
performed in the same way for vehicles with a different
compressor type or a different manufac